Middle left stick

Calculator stick

Levels and Curves adjustments are generally best done prior to conversion to monochrome.

Method 1 - Greyscale

  • Image - mode - greyscale

Method 2 - Hue and Saturation

  • Use hue/saturation control to desaturate to 100%

Method 3 - Double Hue and Saturation Layers

  • Open a file and two hue/saturation adjustment layers .
  • Desaturate the second (top) hue/saturation layer to minus 100%.
  • Change the first hue/saturation layer to colour mode, and adjust the hue and saturation to give the required tonal balance.

Method 4 - Channel Mixing

  • Use the adjust/channel mixing control.
  • Tick the monochrome box.
  • Adjust the colour channels to change the tones (the total of three channel percentages should usually be 100%).

Method 5 - Lightness Channel

  • Open a file - image - mode - lab colour.
  • Choose channels - select lightness channel.
  • Image - greyscale - discard colour channels.
  • Copy background layer - select blend (screen for dark image or multiply for light image) - adjust the opacity to achieve the required tone.

Method 6 - Selective Colour

  • Open a file.
  • Open new layer - fill with 50% grey - colour blend.
  • Select the background layer - open selective colour adjustment layer - adjust the different colours to get right tonal balance.

Method 7 - Selective Colour

  • Open a file
  • Flatten the image.
  • Create a new hue/saturation adjustment layer using saturation mode, hue = -180, saturation = -100 and lightness = +100
  • Convert to LAB color and choose the flatten option if it is available.
  • Open the channels window and delete channels A and B.
  • Convert to greyscale.
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